Both TVs come with smart platforms that support popular streaming apps and voice control features. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Mi 4S 55 and Mi TV X PRO QLED 55 are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments.

Verdict: Choosing between Mi 4S 55 and Mi TV X PRO QLED 55 depends on your usage, whether you prioritize display quality, smoother motion, or smart features.